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Unsheathed Fine Diameter Thermocouples with Bead-Welded Junction. J, K, T, N, E, R, S & B

IRCO, CHAL, P10R AND P13R

Unsheathed Fine Diameter Thermocouples - order online | IRCO, CHAL, P10R AND P13R

Unsheathed Fine Diameter Thermocouples - order online

£27.24 CHAL-005

PLACE ORDER
  • Unsheathed Fine Diameter Thermocouples for fast response
  • Diameters down to 0.05 mm
  • High Accuracy
  • Pin-Point Measurements
  • Low Heat Transfer
Thermocouples - View related products

Description

Click on this link if you need more information about Thermocouple probes.

OMEGA™ fine-diameter thermocouples are used whenever fast, accurate temperature measurements are required. The fine wire diameters enable accurate temperature measurements without disturbing the base temperature of the body in which the installation is made, by keeping heat transfer via the leads to a minimum. Also, the fine junction permits accurate “pin-pointing” of the measured values. They are available in wire diameters ranging from 0.05 mm to 0.81 mm. All fine-gauge thermocouples are made from carefully selected materials. To ensure consistent thermoelectric properties, each pack contains thermocouples made from matched pairs of wire within the same batch number. When specified, several packs of thermocouples made from the same batch can be supplied at no extra charge.

While thermocouple response is a function of medium of submersion, wire diameter, alloy type and temperature level, it is possible to use Table 2 as a guide for comparing the various wire size thermocouples.

Base Metal Thermocouples. (Supplied in packs of 5)
Prices given for 300mm lengths. Other diameters and lengths are available on special order. A 300mm length corresponds to a 600mm loop.

Platinum/Rhodium Thermocouples. (Supplied individually)
Prices given for 150mm lengths. Other diameters and lengths are available on special order. A 150mm length corresponds to a 300mm loop.

Maximum Service Temperature  (Table 1)
Thermocouple
Type		  0.13 mm   0.38 mm   0.51 mm   0.81 mm 
J** 315°C 371°C 371°C 482°C
K 593°C 871°C 871°C 982°C
N 593°C 871°C 871°C 982°C
T 149°C 204°C 204°C 260°C
E 315°C 426°C 426°C 593°C
R,S - - 1450°C 1450°C
B - - 1700°C 1700°C
** Do not expose to oxidising atmospheres.
Table 1 lists maximum service temperatures for long term exposures of bare wire thermocouples. For very short exposure times, temperatures of the fine-gauge thermocouples can be as high as the permissible temperatures for the 0.8 mm diameter thermocouples.

Thermocouple Response Time* (Table 2)
Wire Dia.
mm 		Still Air
 427°C/38°C 		  18 m/sec Air 
427°C/38°C		 Still Water
 93°C/38°C 
0.125 1.0 sec 0.08 sec 0.04 sec
0.381 10.0 sec 0.80 sec 0.40 sec
0.75 40.0 sec 3.2 sec 1.6 sec

*The time constant is defined as the time required to reach 63.2% of an instantaneous temperature change. The data for Table 2 is obtained by measuring the time required for a Type J fine-gauge thermocouple to reach 63.2% of its final temperature when its junction is alternately exposed to two different temperature levels. In this case, the time constant was measured for exposures between 427°C and 38°C in air and between 93°C and 38°C in water.

The most popular models are shown in the "To Order" table below. If the model you require is not in the table then please use the "Part Number Builder" below to obtain pricing, availability and order on-line.
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What Other People Bought: When you see this icon, click on it to expand a list of products that other people have bought when they purchased this model.

Part Number/ Desc.
Qty
Description
Type K Bare Wire Thermocouples (pack of 5)
Click to expand/minimize a list of what others bought with theCHAL-002
CHAL-002
£61.42
Availability: In Stock
 
K Type bare wire thermocouple, unsheathed, 0.05mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-003
CHAL-003
£61.42
Availability: In Stock
 
K Type bare wire thermocouple, unsheathed, 0.075mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-005
CHAL-005
£27.24
Availability: 5 weeks
 
K Type bare wire thermocouple, unsheathed, 0.125mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-010
CHAL-010
£27.24
Availability: 5 weeks
 
K Type bare wire thermocouple, unsheathed, 0.25mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-015
CHAL-015
£27.24
Availability: 2 weeks
 
K Type bare wire thermocouple, unsheathed, 0.38mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-020
CHAL-020
£27.24
Availability: In Stock
 
K Type bare wire thermocouple, unsheathed, 0.5mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theCHAL-032
CHAL-032
£27.24
Availability: 5 weeks
 
K Type bare wire thermocouple, unsheathed, 0.8mm diameter, 300mm long
Type T Bare Wire Thermocouples (pack of 5)
Click to expand/minimize a list of what others bought with theCOCO-015
COCO-015
£27.75
Availability: 5 weeks
 
T Type bare wire thermocouple, unsheathed, 0.38mm diameter, 300mm long
  
COCO-020
£27.75
Availability: 5 weeks
 
T Type bare wire thermocouple, unsheathed, 0.5mm diameter, 300mm long
Type J Bare Wire Thermocouples (pack of 5)
Click to expand/minimize a list of what others bought with theIRCO-003
IRCO-003
£62.26
Availability: 8 weeks
 
J Type bare wire thermocouple, unsheathed, 0.075mm diameter, 300mm long
Click to expand/minimize a list of what others bought with theIRCO-010
IRCO-010
£27.11
Availability: 5 weeks
 
J Type bare wire thermocouple, unsheathed, 0.25mm diameter, 300mm long
Type R Bare Wire Thermocouples (supplied individually)
Click to expand/minimize a list of what others bought with theP13R-002
P13R-002
£54.55
Availability: 6 weeks
 
R Type bare wire thermocouple, unsheathed, 0.05mm diameter, 150mm long
Click to expand/minimize a list of what others bought with theP13R-005
P13R-005
£73.35
Availability: In Stock
 
R Type bare wire thermocouple, unsheathed, 0.125mm diameter, 150mm long
Click to expand/minimize a list of what others bought with theP13R-010
P13R-010
£164.84
Availability: 6 weeks
 
R Type bare wire thermocouple, unsheathed, 0.25mm diameter, 150mm long
Type S Bare Wire Thermocouples (supplied individually)
Click to expand/minimize a list of what others bought with theP10R-002
P10R-002
£54.55
Availability: 6 weeks
 
S Type bare wire thermocouple, unsheathed, 0.05mm diameter, 150mm long
Click to expand/minimize a list of what others bought with theP10R-005
P10R-005
£73.35
Availability: 6 weeks
 
S Type bare wire thermocouple, unsheathed, 0.125mm diameter, 150mm long
Click to expand/minimize a list of what others bought with theP10R-010
P10R-010
£164.84
Availability: 6 weeks
 
S Type bare wire thermocouple, unsheathed, 0.25mm diameter, 150mm long
† All amounts shown in EUR, GBP, or USD
 Note: Shorter lead is negative lead.
Thermocouples 0.125mm dia and larger are made with class 1 tolerance thermocouple wire.
Order Thermocouple insulators separately, eg DH-1-24

Part Number Builder

Build Your Part Number Below
Option Descriptions:


(1) Thermocouple Type select from:
CHAL for K Type
COCO for T Type
IRCO for J Type
OPON for N Type
CHCO for E Type
P13R for R Type
P10R for S Type
P30R for B Type

(2) Wire Diameter select from:
002 for 0.050mm (0.002") Diameter
003 for 0.075mm (0.003") Diameter
005 for 0.125mm (0.005") Diameter
008 for 0.2mm (0.008") for R and S type only
010 for 0.25mm (0.010") Diameter
015 for 0.38mm (0.015") Diameter
020 for 0.5mm (0.020") Diameter
032 for 0.81mm (0.032") Diameter
Note: All combinations may not be valid, check spec sheet for valid part numbers.
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